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BOOKREVIEWS
the use of electrolytic polishing in studying the mechanism of electrolysis and the valence of ions by I. Epelboin, and an uticle by M . Haissinsky on applications of radioactive methods to the study of surface states and surface reactions. A section devoted to potential-pH diagrams contains a progress report of Commission 1 by M. Pourbaix, and eight papers containing potential-pH diagrams for the following metals, or systems, a t 25’: Fe, Cd, Co, and the systems Fe-C02-H20 and CN-HzO by E . Deltombe and M . Pourbaix, the systems Ti-HzO by J. Schmets and M. Pourbaix and Mn-HZO by A. M . Moussard, J. Brenet, F. Jolas, M . Pourbaix and J. Van Muylder, and the electrode P t , S/Ss-- a t 20 and 25’ by G. Maronny and G. Valensi. These are followed by ten articles under the heading polarization curves and electrochemical kinetics. One of these on the temperature dependence of the activation energy of electrochemical reactions, by F. Gutmann and L. M. Simons, is theoretical. The remaining nine contain original experimental data, or curves. B. E . Conway, J. O’M. Bockris and B. Lovrefek report the effects of alkaloids on the rate of evolution of Ha a t cathodes of Hg and other metals. H . J. Keiser and H. Fischer present polarizationcurrent curves for the simultaneous deposition of Hz and N!, and conclude that the rate-determining stage in Hn-deposition is the recombination of H to Hz, catalyzed by Xi. H. Fisher, M . Seipt and G. Morlock make an oscillographic study of the polarization of the deposition of Ni by measuring the variation in overpotential during short rectangular current pulses. G. B. Adams, M. Maraghini and P. Van Rysselberghe describe methods for measuring the thickness of very thin growing films of Zr02. These methods should be serviceable in studying the effects of numerous variables upon the ionic current responsible for oxide film growth. ilctivation polarization in the electrodeposition of Cu is studied by E. Mattsson and R . Lindstrom, and they explain why the rate-determining step in the deposition depends upon current density. L. Gierst and L. Bourgeois present experimental curves and survey the kinetics of the passivation of Hg, and A. Ruis, J. 1,lopis and F. Colom do this for the effects of alternating current on the overpotential of 0 2 and some anodic oxidation processes. This section is concluded with short papers concerning the electrolysis of NaCl with a mercury cathode. M . Dodero and M . Behroun discuss the copiousevolution of Ht, and M . Dodcro, c. Deportes and R. Mayoud present the potential-PH diagram and polarization curves for the electrolysis. The last half of the book is concerned with practical applications of electrochemical thermodynamics and kinetics, and with polarography. Nine papers deal with corrosion. This subject is introduced with a statement of the aims of the study group on corrosion, and with a discussion of definitions, classifications and nomenclature used in the description of corrosion-inhibition and inhibitors. The careful experimental work of A. Ruis, J. Llopsis and F. Colom on superimposed alternating curretits is extended to the anodic corrosion of Pt. R . Olivier contributes a long and important paper on the passivity of Fe-Cr alloys, including 18/8 stainless steel. J. Van Muylder and M . Pourbaix present two papers on the electrochemical behavior of lead and its corrosion and cathodic corrosion protection, and A. M. Abd El Wahed and M. Pourbaix explain the use of polarization curves in studying the corrosion and protection of Fe in the presence of chlorides. M . Serra and S. Feliu present data on the anodic passivation of Fe in sulfate solutions, and discuss several processes which can explain its origin. M. Billy and G . Valensi report an interesting and careful kinetic study of the formation of 8silver sulfide, and discuss its bearing upon the phenomenon of electrochemical corrosion. The electrochemistry of Mn is emphasized in papers under the supervision of Study Group 2 concerned with batteries and accumulators. K. H . Maxwell and H . R . Thirsk contribute an exhaustive study of the relation between preparation and structure of MnOz and the e.m.f. of cells containing the MnOz electrode. An interesting controversy results from the juxtaposition of a paper on the thermodynamics of the MnOz electrode by J . Brenet and a paper by the same author and A. M . Moussard on the variability of the potential of this electrode in practice. The applications of polarography to analytical chemistry are outlined by P. Souchay, and a renewed Hg cathode is shown by H. Coriou, J. Dirian and 5 . Hiire t o permit a pr:,rti(yil sep:tr:ition ( i f tr:ices of &In friiiii rc.lativclg. h r g r
VOl. 7s
amounts of electrolytes. M . A. El Guebely a h o w that this electrode can also be used in the determination of Ru in extremely dilute solutions, because the concentration of Iiu is proportional to the velocity of H + ion discharge which it catalyzes. New developments in polarography and voltmimetry are reviewed by P. Delahay. The volume is concluded with a collection of important but somewhat utirelated papers. The conditions for electrolytic reduction i i f salicylic acid are investigated by H. V. ET. Udupa and B. E . Dey, and the conditions and mechanism of the electrolytic preparation of cyclobutanol are discussed by K . Le Ciirff and F. J . Taboury. Two papers are concerned with t h e mechanism of reduction a t the Hg cathodes. The reductio11 of COZ is considered by T. E. Teeter and P. Van Iiysselberghe, and HZOZis studied by G. -4. hlurtiock and P. Y:LII Kysselberghe. The mechanism of electrolytic polishiiig is discussed by S. Feliu and M . Serra. A cryoscopic study is reported by Y. Doucet, who investigated the theririiidynamic behavior of mixtures of fused salts. Although a part of the volume is necessarily devote11 t i 1 reports and the plans of committees and study groups which may not be of interest to the general reader, some 500 pages contain a wealth and variety of original contributions, and many of these are largely experimental. The 1nternation;il Committee for Electrochemical Thermodynamics arid Kinetics is to be congratulated for making the results of such work available in this convenient and well-organized collcction. STERLING CHEMISTRY LABORATORY YALEUXIVERSITY NEW HAVEN,CONSECTICUT BENTON BROOKS OWES Electrochemical Affinity. Studies in Electrochemical Thermodynamics and Kinetics. BY PIERRE VAN RYSSELBERGHE, Professor a t the University of Oregon, Eugene, Oregon. Hermann and Cie, Editeurs, 6 Rue de la Sorbonne, Paris 6, France. 1955. 109 pp 16 X 2 1 cm. Price, 1250 French francs. The theme of this booklet is “that a ratiord treatment of electrochemistry requires the use of the thermodynamics of irreversible processes and that this discipline, although not new by any means, is still unfamiliar to the majority of physical chemists and electrochemists.” For this majority it can be stated briefly that the thermodynamics of irreversible processes comprises a generalized description it] which reversible processes and equilibria are limiting cases To the majority this may not appear novel or profound. Xevertheless, the thermodynamics of irreversible processes is a profound subject with much of its modern development based on Onsager’s reciprocal relations together with the use of concepts such as the degree of advancement of a reaction and the power of irreversibility introduced by De Donder and extended by Van Rysselberghe. The topics discussed are limited to the theory of galvanic and electrolytic cells, electrode processes, polarization, overpotential, electrochemical kinetics and therrno-electrochemistry. I n essentially the same form a portion of this material has been presented by Van Rysselberghe in the J . Phys. Chem. 57, 275 (1953). This article on electrode phenomena and the thermodynamics of irreversible processes exhibits the same scholarship and style so precisely that it can serve as an illustrative review and partial replica of the material in this brief but interesting book. NATIONAL BUREAUO F STANDARDS E.K. S M I 1 H 25, D. C. WASHINGTON Blood Group Substances. Their Chemistry and Immunochemistry. BY ELVINA. KABAT,Departments of Microbiology and Neurology, College of Physicians and Surgeons, Columbia University; and Keurological Institute, Presbyterian Hospital, New York. Academic Press, Inc., Publisher, 125 East 23rd Street, New York 10, N. Y . 1956. ix 330 pp. 16 X 23 5 cm. Price, $8.00. The author of this very worthwhile book brings to hii task a profound knowledge of inimunochemistry and also a long experience in t!ie field in which the A4,B,0 blood group system forms a useful model. Much of present day knowledge in immunology and chemistry of antigens and :tilt ibodies has been olttnined by study of this 5ystern.
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